[ovirt-users] off topic = newbie with bugzilla, gerrit and ovirt VDSM 4.14

Hi, I have a problem with an automatic yum vdsm upgrade (4.13 to 4.14) on ovirt 3.3 : Host x.x.x.x is installed with VDSM version (4.14) and cannot join cluster Default which is compatible with VDSM versions [4.13,4.9,4.11,4.12,4.10]. I am searching the solution and one of them (from bz Bug 1083008 ) points to gerrit site(http://gerrit.ovirt.org/#/c/23456/) I do not have any experience in solving bugs, neither bz, gerrit, github.... How to initialize in this world and solve the ovirt problem ? another thing : does downgrade or remove vdms package excludes the installed virtual machines ? I know about ovirt 3.4 is the new release, but I want to learn how to solve some bugs when new releases is not launched; (off course I am afraid to upgrade to ovirt 3.4 too :) ) Tamer